What does it mean to apply for one-inch photos of social security cards online?

Online processing of one-inch photos of social security cards refers to the need to submit a recent bareheaded color photo. The requirement is that the avatar accounts for 2/3 of the photo size. Please wear dark clothes when taking pictures, and don't wear standard clothes or white tops. The insured who often wears glasses should wear glasses. It requires clear portraits, rich levels, natural expressions and no obvious distortion. There are no spots, flaws and ink printing defects in the photos, and there are no local brightness and reflective areas on the face; The electronic photo size standard 1 inch is 26mm (width) and 32mm (height), and the width of the face (between the ears) is15+1mm; Electronic photo file size: 9K-20K, resolution: 350dpi, pixel: 35844 1, format JPG format. The electronic version of the photo is named after name+ID type+ID number.